Final answer:
An extensive physical property for a coin is described by its mass, such as 6.25 g, as it changes depending on the amount of the coin.
Explanation:
An extensive physical property for a coin would be the coin has a mass of 6.25 g. This is because the mass of the coin changes depending on the size or amount of the coin, making it an extensive property. Other options like the coin's color or composition do not vary with size, so they are intensive properties.
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